EP 0479335 A2 19920408 - Drill.
Title (en)
Drill.
Title (de)
Bohrer.
Title (fr)
Foret.
Publication
Application
Priority
- EP 88850168 A 19880517
- SE 8702106 A 19870521
Abstract (en)
A drill (10) for stack drilling comprising a drill body (11) and a central cutting insert (12) and a peripheral cutting insert (13). The cutting inserts have active cutting edges which are arranged such that the drill at machining successively cuts from the center of the drill and radially outwardly in order to avoid break-out slugs at stack drilling. <IMAGE>
IPC 1-7
IPC 8 full level
B23B 51/00 (2006.01); B23B 51/04 (2006.01)
CPC (source: EP US)
B23B 51/00 (2013.01 - EP US); Y10S 408/713 (2013.01 - EP US); Y10T 408/868 (2015.01 - EP US); Y10T 408/8738 (2015.01 - EP US); Y10T 408/899 (2015.01 - EP US); Y10T 408/906 (2015.01 - EP US); Y10T 408/909 (2015.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0292455 A2 19881123; EP 0292455 A3 19890614; EP 0292455 B1 19921216; DE 3855998 D1 19970918; DE 3855998 T2 19971218; DE 3876683 D1 19930128; DE 3876683 T2 19930527; EP 0479335 A2 19920408; EP 0479335 A3 19940629; EP 0479335 B1 19970813; JP H0724969 B2 19950322; JP S6445505 A 19890220; SE 457696 B 19890123; SE 8702106 D0 19870521; SE 8702106 L 19881122; US 4889455 A 19891226
DOCDB simple family (application)
EP 88850168 A 19880517; DE 3855998 T 19880517; DE 3876683 T 19880517; EP 91120608 A 19880517; JP 12302988 A 19880521; SE 8702106 A 19870521; US 19560988 A 19880518